IEE380Summer09Q10_Solutions - IEE 380 Summer 2009 Quiz#10A...

IEE 380 Summer 2009Name: _____________________________Quiz #10AThe times between two consecutive arrivals to an ATM machine have a pdf that is exponential with a mean of 5 minutes. What is the probability that the time between two consecutive arrivals is less than 10 minutes? You can leave your answer in term form.T ~ exponential with l = 1/5 min P(T < 10 min) = F(10) = 1 – e-10/5= 1 – e-2Eight viscosity measurements were taken from a process: 724, 718, 776, 760, 745, 759, 742, 740. Use your calculator to determine the sample standard deviation. Report your answer to two decimal places.19.21

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IEE 380 Summer 2009Name: _____________________________Quiz #10BEight viscosity measurements were taken from a process: 724, 718, 776, 760, 745, 759, 742, 740. Use your calculator to determine the sample standard deviation. Report your answer to two decimal places.19.21The times between two consecutive arrivals to an ATM machine have a pdf that is exponential with a mean of 5 minutes. What is the probability that the time between two consecutive arrivals is less than 5 minutes? You can leave your answer in term form.

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